High-frequency dielectric spectra of AgTaO₃-AgNbO₃mixed ceramics

Abstract

This paper presents the results of dielectric susceptibility investigations performed in the radiowave, microwave, submillimetre wave and infrared (IR) regions on the AgTaO3-AgNbO3 solid solution with Nb contents of 0.3, 0.4 and 0.6. An intense dipolar relaxation, which is responsible for the temperature dependence of the static permittivity and which freezes out at low temperatures, has been evidenced in the submillimetre wave region.